Frederick bentel



- P. BENTEL;

HORSE HAY RAKE.

(No Model.)

Patented Aug. 11', 1885.

Witnesses Er ca FREDERICK BENTEL, OF HAMILTON, OHIO, ASSIGNOR TO JOHN W. SOHN,

OF SAME PLACE.

HORSE HAY-RAKE.

SPECIFICATION forming part of Letters Patent No. 324-,000, dated August 11, 1385.

Application filed August 18, 1884. (No model.)

To all whom it may concern.-

Be it known that I, FREDERICK BENTEL, of Hamilton, Butler county, Ohio, have invented certain new and useful Improvements in Horse Hay-Rakes, of which the following is a specifieation.

This invention relates to the tooth-holding devices of horse hay-rakes, and will be understood from the following description, taken in connection with the accompanying drawings, in Which- Figure 1 is a side view of my improved tooth-holder; Fig. 2, a perspective view ofthe same, and Fig. 3 a vertical section of thesame transverse to the bar on which the holder is secured.

The present device is an improvement upon the device of Letters Patent No. 283,324,granted August 14, 1883, to the Sohn Ridge lmple ment Company, of Hamilton, Ohio, as the assignee of Robert S. Carr, of the same place, to which patent the reader may refer with advantage in connection with the present description.

In the drawings, A represents the actuatingbar, to which the series ot'teeth is to be secured; B,atooth-holder,by means of which the tooth i secured to the bar; 0, the tooth; 1), aspline and groove to prevent the holder from revolving upon the bar; E, thelower portion of the toothholder; F, the upper portion of the tooth-holder; G, the hinge-like engagement of the two portions of the tooth-holder; H, the elaspingbolt by which the tooth-holder is made fast upon the bar; I, a wrist supported by a forward projection of'the tooth-holder; J, an open hook formed at the upper extremity of the tooth and adapted to engage with the wrist, the opening of the hook having a forward presentation; K, a pair of lugs formed with and projecting downward from thetooth-holder and straddling the tooth; L, a pin passing transversely through the lugs above the teeth M, a similarly-arranged pin below the tooth; N, a bow in the tooth at a point between the tooths engagement with the wrist and the lugs, and O a projection on the tooth-holder located to the rear of the hook on the tooth.

The bar A serves in actuating the tooth, as usual, and it may also serve as the machineaxle in the manner set forth in the patent previously referred to. In the device of that patent the tooth was rigidly held by the toothholder. The result of this arrangement was that the free part of the tooth was liable to get into vibrations of which the rigidly-held portion could not partake, resulting in a crystallization of the metal of which the teeth were made, and the consequent breakage of the teeth.

In the present case the teeth are not firmly bound by the holder. The holder supports the tooth, but does not rigidly grasp any portion of it. WVhen the pin M is removed, the tooth may be swung forward and readily disengaged from the wrist, while at the same time there is no liability of disengagement when the tooth is in normal position.

The lugs are provided, as shown, with aseries of holes, by which thepins M and L may be variously located. The pins may be so located as to prevent any vertical movement of the tooth at the point where it passes between the lugs. In such case the tooth depends en tirely upon its flexibility for movement as it passes over irregular ground. The bow Nin such case serves to relieve the tooth of rigidity at that portion between its two supports, the intention being to remove the element of perfect rigidity from that portion of thetooth.

By so locating the pins L and M as to per.- mit a certain vertical movement of the tooth at the lugs the tooth becomes what is known as a drop-tooth, the point' of the tooth being at liberty to swing a greater or less distance independent of its flexibility and independent of the swing of its fellow tooth, the tooth in such case pivoting freely upon the wrist. In the patent referred to a device was provided for bringing an adjustable support below the tooth; but this device served merely to limit the elastic action of the tooth, and at of the tooth being adjusted even if no drop is tooth-holder, apair of lugs straddling thetooih 1o desired. The pins may be formed by split to the rear of said wrist, and adjustable suppins, carriage-bolts, Wires, or other devices ports above and below the tooth at said lugs, readily adjustable with reference to each other l combined substantially as specified.

and to the bar.

I claim as my invention- FREDERICK BEN In a hay-rake, a tooth-supporting bar, a XVitnesses:

tooth-holder clamped to the bar, a flexible \V. A. SEWARD,

tooth pivoted to a wrist supported by said A J. W. 

